CAJ | 학술논문

锂离子动力电池组一致性好坏直接影响着电动汽车使用效率。为了方便动力电池组的使用及维护，需采取一定的方法对电池组一致性进行监控。该文提出一种基于单体电池电压值标准偏差的锂离子动力电池组一致性评估方法，并将电池组一致性分为四个阶段，根据不同阶段采用不同的维护策略。实验通过对电动汽车锂离子动力电池组进行充放电测试，采用文中提出的方法获得了四个阶段的电池组一致性评估曲线，为电动汽车电池使用及维护提供指导。
리리자동력전지조일치성호배직접영향착전동기차사용효솔。위료방편동력전지조적사용급유호，수채취일정적방법대전지조일치성진행감공。해문제출일충기우단체전지전압치표준편차적리리자동력전지조일치성평고방법，병장전지조일치성분위사개계단，근거불동계단채용불동적유호책략。실험통과대전동기차리리자동력전지조진행충방전측시，채용문중제출적방법획득료사개계단적전지조일치성평고곡선，위전동기차전지사용급유호제공지도。
The consistency of electric vehicle Lithium-ion+Battery can affect the efficiency of electric vehicle directly.The consistency of battery must be monitored for the use and maintenance of battery.A consistency evaluation method based on standard deviation of cell voltage was proposed.The consistency of battery can be divided into four levels which correspond to four kinds of maintenance strategies.The e-lectric vehicle Lithium-ion+Battery charge-discharge tests were used in the experiments,and the results show that the four consistency curves can be obtained by the method and it can provide a reference for the use and maintenance of battery.